Question

The Earth’s radius is about 6380 km. The space shuttle is orbiting about 275.0 km above Earth’s surface.
If the average speed of the space shuttle is 23500 km/h, find the time required for it to circle Earth.
bobpursley
time=distance/velocity

=(6380+275)km*2PI/(23500km/hr)= about 1.8 hours

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